TNS Astronomical Transient Report No. 263900 [ 2025TNSTR2908....1F ]
Date Received (UTC): 2025-07-26 19:06:09
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: SN 2025shh
Discoverer internal name: ZTF25abeckqg
Coordinates (J2000): RA = 21:36:39.608 (324.1650344) DEC = +46:32:38.39 (46.5439961)
Discovery date: 2025-07-26 08:45:53.004 (JD=2460882.8651968)
Potential host galaxy: WISEA J213639.37+463247.3
Remarks: Early SN candidate (g-rise > 0.17+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abeckqg
Photometry
Discovery (first detection):
Discovery date: 2025-07-26 08:45:53.004
Flux: 18.6306 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-07-22 07:42:36
Limiting flux: 20.394 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025shh
Date Received (UTC): 2025-07-26 19:06:09
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: SN 2025shh
Discoverer internal name: ZTF25abeckqg
Coordinates (J2000): RA = 21:36:39.608 (324.1650344) DEC = +46:32:38.39 (46.5439961)
Discovery date: 2025-07-26 08:45:53.004 (JD=2460882.8651968)
Potential host galaxy: WISEA J213639.37+463247.3
Remarks: Early SN candidate (g-rise > 0.17+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abeckqg
Photometry
Discovery (first detection):
Discovery date: 2025-07-26 08:45:53.004
Flux: 18.6306 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-07-22 07:42:36
Limiting flux: 20.394 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025shh